Cultivation methods and precautions of Toba Jade

1. Maintenance methods

1. Temperature: The black-feathered jade plant likes warmth and dislikes cold. The maintenance temperature should be controlled at around 25 degrees. If the temperature is too high, you can spray water mist to cool it down. If the temperature is below fifteen degrees, the growth of the plant will be affected. If it is below ten degrees, the plant will be frostbitten. Therefore, during the maintenance process, you must control the maintenance temperature well to avoid damage to the plant.

2. Watering: Summer and autumn are its growing seasons, so you should water it frequently, two to three times a week. Early winter and early spring are not its growing seasons, so you need to control the amount of water, and water it once a week to ten days is enough. In winter, its bulb will slowly shrink and the soil needs to be kept dry. Generally, watering is not needed during this period.

3. Fertilization: During the growth period, it consumes nutrients relatively quickly, and the nutrients in the soil cannot meet its needs. It needs to be fertilized once a month. Use a low-nitrogen, high-potassium, phosphorus-containing compound fertilizer. It should be noted that when applying fertilizer, the fertilizer should not come into direct contact with the plant.

4. Light: It likes to grow in a well-ventilated and well-lit environment. It is not tolerant to strong light, so the light should be mainly diffused, especially in summer. It is best to move it to a semi-shaded place indoors for maintenance. The daily light exposure time should be more than five hours. Except for summer, normal light can be used in other seasons and no shade is needed.

2. Breeding techniques

1. Reproduction: It can be propagated by sowing. The sowing time is in April and May every year. First, disinfect the potting soil. You can use steam-sterilized plain sandy soil, then wet the soil with the pot immersion method, and sprinkle the seeds on the soil surface. Because its seeds are relatively small, there is no need to cover the soil. Just cover the soil surface with a glass piece to keep it moist. After completing the above steps, place it in a cool place for maintenance, control the temperature between 15 and 25 degrees, and it will germinate in about ten days.

2. Pruning: Generally, it does not require pruning. It will only be pruned when beheading propagation is carried out.

3. Problem Diagnosis

1. Pests: The black jade plant is more susceptible to invasion by harmful organisms such as red spider mites, and may also be infected with rust or stem rot. You can regularly use pansacarb and fenacet for prevention and control. It should be noted that in order to avoid resistance, the control agents should be replaced frequently and not used for a long time.

2. Disease: If the plant's ball becomes soft and collapsed, it may be root rot. The most direct cause of root rot is excessive watering and poor drainage of the potting soil. You need to change the pot and soil.